—Hi, Xiao Hui, you look tired. What happened?

—I ________ well last night.[ ]

A. didn't sleep

B. don't sleep

C. haven't slept

D. won't sleep

精确制导弹药主要有（）

A、制导炸弹

B、制导炮弹

C、制导地雷

D、制导鱼雷